Description
2.6 Possible uses and portfolio
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
Manual, 10/2018, L1V30499596002-01
21
Possible uses and portfolio
Possible uses
The circuit breaker performs the different protection tasks and can be used in the following
areas:
Breaking capacity 3WL10: 42 to 66 kA / 3VA27: 55 to 110 kA
Segments Commercial buil-
dings
Infrastructure Industrial buildings Functional
enclosure
Production/
process
Examples Office buildings,
banks,
hotels, cinemas,
shopping malls,
hospitals, universi-
ties,
Airports,
train stations,
sports stadiums,
ports,
exhibition sites
Industrial parks,
warehouses,
logistics centers
Paper industry,
computer centers,
oil & gas industry,
foodstuffs
industry
Presses, galvaniz-
ing lines, rolling
mills, grinding mills,
agitators and mix-
ers, production
lines
The circuit breaker is used for the following functions:
● Line protection
● Generator protection
● Motor protection
● High breaking capacity
– 3WL10 air circuit breakers: Up to 66 kA
– 3VA27 molded case circuit breakers: Up to 110 kA
● Selectivity, in particular, for high coordination requirements based on time, current, and
energy discrimination.
● Communication
● As a version of a non-automatic air circuit breaker in accordance with IEC 60947-3